Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

what is meant by Transaction Isolation Levels?

IBM,

2 8212

can anyone explain me the workflow of EJB.I have developed an app. in WSAD using an example that contains CMP and session bean.But i am not able to understand the basic flow between diffrent packages.

2380

Explain how data flows from view to db and reverse

Bosch,

2049

How to get ip address in jsp login page and how to validate like 127.1.0.1 all should not be greater than 255

Bosch, EF,

3395

In jsp custom tags from child tags to how many levels of parent tags you can acess

Bosch,

1 3998

How to work with Chinese login page (internationalization).if he enters user name and password in chinese, how is it converted to English and validate in db? And in reverse it should display welcome message in Chinese,if user is valid

Bosch,

4 8928

What is done after deploying a war file and before client gives a request

Bosch,

2 6040

Is classes folder is compulsory in web-inf/ even though u r deploying ur application with war file?

Bosch, Cognizant,

3 8860

How do u authorize and authenticate without of web.xml

Bosch,

1 5093

How to make a class immutable?

Bosch, TSYS,

15 30573

If we close the browser,when the specific user session is active.Again if we open browse how to retrive it same user??what code i have to da???

TCS,

5 12452

What is a constructor?

4 6022

What is the difference between Abstract Class and Interface

Amdocs,

8 15734

In HashTable I am storing null value..then what is the error it will show

GM General Motors,

2 12198

In web.xml file instead of *.do can i write *.ibm, Specify with example

IBM,

13 23182

Un-Answered Questions { Java J2EE }

how to remove the application-scoped resources from an enhanced ear file?

928

Is httpsession thread safe?

350

What is resultset in jdbc with example?

939

Does java support Operator Overloading?

1040

Why we use struts over servlets?

1070

What is @joincolumn?

663

Hibernate SessionFactory is thread safe?

370

What is the latest version of JDBC? What are the new features added in that?

998

Can we handle exceptions in Struts programmatically?

974

What causes statelessness?

906

Difference between doget and dopost?

1172

What does PUT function do?

836

List hibernate session interface methods?

392

What is lazy class?

411

What is advantage of java?

1024

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